<form name="news_edit" action="" method="post">
    <{section name=sec loop=$row_result}>
        <{$row_result[sec].content}>
    <{/section}>
<div class="formControl">
 
  <input type="button" name="return" value="返回上一页" class="button" onclick="history.go(-1)" />
  <input type="hidden" name="action" value="submit" />
  <input type="hidden" name="id" value="<{$id}>" />
  <input type="hidden" name="classid" value="<{$classid}>" />
</div>
</form>